Harvester-cutter.



Y'UNTTE SATES AT OFFICE.

WLLIAM. D. WHEAT, OF JAMESTOWN, KENTUCKY, ASSIGNOR OF ONE-HALF TO ELMERWHEAT, OF JAMESTOWN, KENTUCKY.

HARVESTER-CUTTER.

Specification of Letters lf'atent.

Patented Dee. 3, 1907.

Application filed February l. 1907. Serial No. 355.307.

To all whom it may concern:

Be it known that I, WILLIAM D. WHEAT, citizen of the United States,residing at Jamestown, in the county of Russell and State of Kentucky,have invented certain new and useful Improvements in Harvester- Cutteis,of which the following is a specificaplaced by a new one, and a furtherobject of the invention is to provide an improved construction of cutterbar of which the teeth or sections are interlocked when in operativeposition, each tooth of the series locking the one next to it in place,all as will be hereinafter specically described and particularly pointedout in the appended claims.

For a full understanding of the invention and the merits thereof andalso to acquire a knowledge of the details of construction of the meansfor effecting the result, reference is to be had to the followingdescription and accompanying drawings, in which:

Figure l is a perspective view of a cutter bar embodying features of myinvention, parts being broken away 3 Fig. 2 is a top plan view of thecutter bar with the covering strip removed; and Fig. 3 is a detailperspective view on an enlarged scale of one end of the supporting beam.

Corresponding and like parts are referred to in the followingdescription and indicated 1n all the views of the drawings by the. samereference characters.

Referring to the drawing, the numeral 1 designates the supporting beamwhich is provided on one face with a series of forwardly openingrecesses 2 which are provided with side walls 3 oblique to linesperpendicular to the beam, the walls of one recess being separated fromthe walls of the next adjacent recess by means of obliquely extendinglugs 4. Each tooth in the series of teeth, except the last, is providedwith an offset extension 5,

the side walls of which are oblique to the general plane or direction ofthe teeth to correspond with the side walls of the recesses and eachoffset 5 forms with the main portion of the tooth of which it is a part,a rearwardly facing shoulder 6 and an opposite forwardly facing shoulder7. It will thus be seen that as one tooth after another is placed withinthe recesses 2 in the line or series, the rearwardly facing shoulder 6of one tooth will project over the forwardly extending shoulder 7 of thenext preceding tooth. By this means, all of the teeth of the cutter barare locked together, and to secure said teeth in place and insure thatthis interlocking connection should be effective, I provide a lockingstrip 8 which extends over the offsets of all the teeth and is rivetedor otherwise secured to the supporting beam l. The last tooth at theinner end of the series is provided with a shoulder 6a corresponding tothe shoulders 6 of the other teeth, but is not provided with anyforwardly facing shoulder, such as the shoulders 7. This last tooth isformed with a screw hole into which a screw 9 fits, said screw 9 workingthrough the locking strip 8 and into the said tooth. Or the last toothmay be secured in place by any desired fastening means.

From the foregoing description in connection with the accompanyingdrawing, it is evident that all of the teeth are interlocked, and thatin order to remove any one tooth, it is only necessary to unscrew theend tooth, whereupon the other teeth may be taken out one after theother, and the Worn tooth thus reground or replaced by a new one.

It vill be seen that the construction is very durable and very efficientfor the purposes herein set forth.

Having thus described the invention, what is claimed as new is:

A cutter bar consisting of a supporting beam provided with forwardlyopening recesses disposed obliquely to lines perpendicular to the beam,a locking strip secured to said beam and adapted to cover said recesses,teeth rovided with offset extensions, the side waffe of which aredisposed obliquely to the direction in which said teeth point, saidextensions fitting into said recesses, each of said teeth except onebeing ing shoulder of the next tooth, and means provided with arearwardly facing shoulder7 for securing this last named tooth in place.10 and an opposite forwardly facing shoulder, In testimony whereof Iaflixrny signature and the rearwardly facing shoulder of one in presenceof two witnesses.

tooth overlapping the forwardly facing shoul- WILLIAM D. WHEAT. [L. s]der of the next tooth, the said excepted Witnesses: tooth being providedwith a rearwardly fac- C. A. I-IAMMONDS,

ing shoulder overlapping the forwardly fac- KATE SIMPSON.

